English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

We use neutron scattering to study vanadium (hole)-doped LiFe$_{1-x}$V$_x$As.In the undoped state, LiFeAs exhibits superconductivity at $T_c=18$ K andtransverse incommensurate spin excitations similar to electron overdoped ironpnictides. Upon vanadium-doping to form LiFe$_{0.955}$V$_{0.045}$, thetransverse incommensurate spin excitations in LiFeAs transform intolongitudinally elongated in a similar fashion as that of potassium (hole) dopedBa$_{0.7}$K$_{0.3}$Fe$_2$As$_2$, but with dramatically enhanced magneticscattering and elimination of superconductivity. This is different from thesuppression of the overall magnetic excitations in hole doped BaFe$_2$As$_2$and the enhancement of superconductivity near optimal hole doping. Theseresults are consistent with density function theory plus dynamic mean fieldtheory calculations, suggesting that vanadium-doping in LiFeAs may induce anenlarged effective magnetic moment $S_{eff}$ with a spin crossover ground statearising from the inter-orbital scattering of itinerant electrons.

Strong local moment antiferromagnetic spin fluctuations in V-doped LiFeAs